The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 1987
Filed:
Dec. 14, 1984
Other;
Abstract
A thermostable polycrystalline diamond body is produced by pre-treating the diamond crystals with molten base or salt, mixing the pre-treated diamond crystals with silicon powder or a blend of silicon and one or more substances, subjecting the mixture to a combination of high-pressure and high-temperature and maintaining the pressure and temperature for a period of time. The thermostable polycrystalline diamond body is characterized in having diamond crystals uniformly distributed in the body. The diamond crystals are covered by .beta.-silicon carbide and that the diamond crystals together with .beta.-silicon carbide form an uninterrupted framework throughout the entire body, the interstices of which are filled with elemental silicon or silicon-containing refractory phases. A polygonal graphite mold having walls of equal thickness useful in the production of said thermostable polycrystalline diamond body is also provided.